Abstract:

During the multi-layer weaving process, aiming at difficulties in creating a clear shed opening passage for each warp layer, an analytical model to characterize the hanging path of each layer's warp yarn are propsed. Experiments has also been conducted to evaluate the accurancy of the analytical model by using different yarns such as kevlar, carbon and glass fiber or by using various carbon fiber yarns such as in fineness. After the comparisons, it is fornd that this model suits better to describe finer yarns, however, with coarse yarns, the model lost its efficiency and need to be further modified. The outcomes from this work is to provide a useful reference to characterise the warp yarn hanging path during multi-layer weaving under statistic conditions.

Key words: warp tension, multi-shed weaving, warp analytical model, warp hanging characteristic